diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index fd137927a9..a9ef3eec06 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,8 @@
+2016-09-23  Jon Turney  <jon.turney@dronecode.org.uk>
+
+	* windows-nat.c (windows_delete_thread): Adjusting call to
+	target_mourn_inferior to include ptid_t argument.
+
 2016-09-23  Tom Tromey  <tom@tromey.com>
 
 	* utils.h (make_cleanup_dyn_string_delete): Remove declaration.
diff --git a/gdb/windows-nat.c b/gdb/windows-nat.c
index 31a9ecb15c..c6a809b0b2 100644
--- a/gdb/windows-nat.c
+++ b/gdb/windows-nat.c
@@ -2464,7 +2464,7 @@ windows_kill_inferior (struct target_ops *ops)
 	break;
     }
 
-  target_mourn_inferior ();	/* Or just windows_mourn_inferior?  */
+  target_mourn_inferior (inferior_ptid);	/* Or just windows_mourn_inferior?  */
 }
 
 static void